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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q

☑ | QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended March 31, 2025

Or
☐ | TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

Commission File Number 001-5424
DELTA AIR LINES, INC.
(Exact name of registrant as specified in its charter)

Delaware |  | 58-0218548
(State or other jurisdiction of incorporation or organization) |  | (I.R.S. Employer Identification No.)
Post Office Box 20706 |  |
Atlanta, Georgia |  | 30320-6001
(Address of principal executive offices) |  | (Zip Code)

Registrant's telephone number, including area code: (404) 715-2600
Securities registered pursuant to Section 12(b) of the Act:

Title of each class |  | Trading Symbol |  | Name of each exchange on which registered
Common Stock, par value $0.0001 per share |  | DAL |  | New York Stock Exchange

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes ☑ No ☐
Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).
Yes ☑ No ☐
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer | ☑ | Accelerated filer | ☐ | Non-accelerated filer | ☐
Smaller reporting company | ☐ | Emerging growth company | ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes ☐ No ☑
Number of shares outstanding by each class of common stock, as of March 31, 2025
Common Stock, $0.0001 par value - 652,955,169 shares outstanding
This document is also available through our website at http://ir.delta.com/.

Table of Contents
| Page
Forward Looking Statements | 1
Report of Independent Registered Public Accounting Firm | 2
Part I. Financial Information |
Item 1. Financial Statements | 3
Consolidated Balance Sheets | 3
Condensed Consolidated Statements of Operations and Comprehensive Income | 4
Condensed Consolidated Statements of Cash Flows | 5
Consolidated Statements of Stockholders' Equity | 6
Notes to the Condensed Consolidated Financial Statements | 7
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations | 15
Item 3. Quantitative and Qualitative Disclosures About Market Risk | 26
Item 4. Controls and Procedures | 26
Part II. Other Information |
Item 1. Legal Proceedings | 26
Item 1A. Risk Factors | 26
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds | 26
Item 6. Exhibits | 27
Signature | 28

Forward Looking Statements
Unless otherwise indicated or the context otherwise requires, the terms "Delta," "we," "us" and "our" refer to Delta Air Lines, Inc. and its subsidiaries.
FORWARD-LOOKING STATEMENTS
Statements in this Form 10-Q (or otherwise made by us or on our behalf) that are not historical facts, including statements about our estimates, expectations, beliefs, intentions, projections, goals, aspirations, commitments or strategies for the future, may be "forward-looking statements" as defined in the Private Securities Litigation Reform Act of 1995. Forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from historical experience or our present expectations. Known material risk factors applicable to Delta are described in "Item 1A. Risk Factors" of our Annual Report on Form 10-K for the fiscal year ended December 31, 2024 ("Form 10-K"), other than risks that could apply to any issuer or offering. All forward-looking statements speak only as of the date made, and we undertake no obligation to publicly update or revise any forward-looking statements to reflect events or circumstances that may arise after the date of this report except as required by law.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
To the Board of Directors and the Stockholders of
Delta Air Lines, Inc.
Results of Review of Interim Financial Statements
We have reviewed the accompanying consolidated balance sheet of Delta Air Lines, Inc. (the Company) as of March 31, 2025, the related condensed consolidated statements of operations and comprehensive income, condensed consolidated statements of cash flows, and consolidated statements of stockholders' equity for the three-month periods ended March 31, 2025 and 2024, and the related notes (collectively referred to as the "condensed consolidated interim financial statements"). Based on our reviews, we are not aware of any material modifications that should be made to the condensed consolidated interim financial statements for them to be in conformity with U.S. generally accepted accounting principles.
We have previously audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2024, the related consolidated statements of operations, comprehensive income, cash flows, and stockholders' equity for the year then ended, and the related notes (not presented herein); and in our report dated February 11, 2025, we expressed an unqualified audit opinion on those Consolidated Financial Statements. In our opinion, the information set forth in the accompanying consolidated balance sheet as of December 31, 2024, is fairly stated, in all material respects, in relation to the consolidated balance sheet from which it has been derived.
Basis for Review Results
These financial statements are the responsibility of the Company's management. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission (SEC) and the PCAOB. We conducted our review in accordance with the standards of the PCAOB. A review of interim financial statements consists principally of applying analytical procedures and making inquiries of persons responsible for financial and accounting matters. It is substantially less in scope than an audit conducted in accordance with the standards of the PCAOB, the objective of which is the expression of an opinion regarding the financial statements taken as a whole. Accordingly, we do not express such an opinion.

| /s/ Ernst & Young LLP
Atlanta, Georgia |
April 9, 2025 |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 2

Financial Statements
DELTA AIR LINES, INC.
Consolidated Balance Sheets
(Unaudited)

(in millions, except share data) | March 31, 2025 |  | December 31, 2024
ASSETS
Current Assets: |  |  |
Cash and cash equivalents | $ | 3,711 |  |  | $ | 3,069 |
Accounts receivable, net of allowance for uncollectible accounts of $18 and $18 | 3,652 |  |  | 3,224 |
Fuel, expendable parts and supplies inventories, net of allowance for obsolescence of $128 and $120 | 1,486 |  |  | 1,428 |
Prepaid expenses and other | 2,387 |  |  | 2,123 |
Total current assets | 11,236 |  |  | 9,844 |
Noncurrent Assets: |  |  |
Property and equipment, net of accumulated depreciation and amortization of $23,708 and $23,228 | 38,171 |  |  | 37,595 |
Operating lease right-of-use assets | 6,542 |  |  | 6,644 |
Goodwill | 9,753 |  |  | 9,753 |
Identifiable intangibles, net of accumulated amortization of $922 and $919 | 5,972 |  |  | 5,975 |
Equity investments | 2,819 |  |  | 2,846 |
Other noncurrent assets | 2,849 |  |  | 2,715 |
Total noncurrent assets | 66,106 |  |  | 65,528 |
Total assets | $ | 77,342 |  |  | $ | 75,372 |
LIABILITIES AND STOCKHOLDERS' EQUITY
Current Liabilities: |  |  |
Current maturities of debt and finance leases | $ | 2,938 |  |  | $ | 2,175 |
Current maturities of operating leases | 752 |  |  | 763 |
Air traffic liability | 10,023 |  |  | 7,094 |
Accounts payable | 4,809 |  |  | 4,650 |
Accrued salaries and related benefits | 3,333 |  |  | 4,762 |
Loyalty program deferred revenue | 4,425 |  |  | 4,314 |
Fuel card obligation | 1,100 |  |  | 1,100 |
Other accrued liabilities | 2,319 |  |  | 1,812 |
Total current liabilities | 29,699 |  |  | 26,670 |
Noncurrent Liabilities: |  |  |
Debt and finance leases | 12,886 |  |  | 14,019 |
Noncurrent operating leases | 5,704 |  |  | 5,814 |
Pension, postretirement and related benefits | 3,117 |  |  | 3,144 |
Loyalty program deferred revenue | 4,553 |  |  | 4,512 |
Deferred income taxes, net | 2,229 |  |  | 2,176 |
Other noncurrent liabilities | 3,707 |  |  | 3,744 |
Total noncurrent liabilities | 32,196 |  |  | 33,409 |
Commitments and Contingencies |  |  |
Stockholders' Equity: |  |  |
Common stock at $0.0001 par value; 1,500,000,000 shares authorized, 659,478,443 and 654,571,606 shares issued | — |  |  | — |
Additional paid-in capital | 11,698 |  |  | 11,740 |
Retained earnings | 8,925 |  |  | 8,783 |
Accumulated other comprehensive loss | (4,938) |  |  | (4,979) |
Treasury stock, at cost, 6,523,274 and 8,098,971 shares | (238) |  |  | (251) |
Total stockholders' equity | 15,447 |  |  | 15,293 |
Total liabilities and stockholders' equity | $ | 77,342 |  |  | $ | 75,372 |
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 3

Financial Statements
DELTA AIR LINES, INC.
Condensed Consolidated Statements of Operations and Comprehensive Income
(Unaudited)

| Three Months Ended March 31, |  |
(in millions, except per share data) | 2025 |  | 2024 |  |  |  |
Operating Revenue: |  |  |  |  |  |  |
Passenger | $ | 11,480 |  |  | $ | 11,131 |  |  |  |  |
Cargo | 208 |  |  | 178 |  |  |  |  |
Other | 2,352 |  |  | 2,439 |  |  |  |  |
Total operating revenue | 14,040 |  |  | 13,748 |  |  |  |  |
Operating Expense: |  |  |  |  |  |  |
Salaries and related costs | 4,083 |  |  | 3,791 |  |  |  |  |
Aircraft fuel and related taxes | 2,410 |  |  | 2,598 |  |  |  |  |
Ancillary businesses and refinery | 1,250 |  |  | 1,370 |  |  |  |  |
Contracted services | 1,121 |  |  | 1,024 |  |  |  |  |
Landing fees and other rents | 851 |  |  | 748 |  |  |  |  |
Aircraft maintenance materials and outside repairs | 646 |  |  | 679 |  |  |  |  |
Regional carrier expense | 613 |  |  | 550 |  |  |  |  |
Depreciation and amortization | 607 |  |  | 615 |  |  |  |  |
Passenger commissions and other selling expenses | 552 |  |  | 550 |  |  |  |  |
Passenger service | 430 |  |  | 413 |  |  |  |  |
Aircraft rent | 137 |  |  | 136 |  |  |  |  |
Profit sharing | 124 |  |  | 125 |  |  |  |  |
Other | 647 |  |  | 535 |  |  |  |  |
Total operating expense | 13,471 |  |  | 13,134 |  |  |  |  |
Operating Income | 569 |  |  | 614 |  |  |  |  |
Non-Operating Expense: |  |  |  |  |  |  |
Interest expense, net | (179) |  |  | (205) |  |  |  |  |
Gain/(loss) on investments, net | (40) |  |  | (227) |  |  |  |  |
Loss on extinguishment of debt | — |  |  | (4) |  |  |  |  |
Miscellaneous, net | (30) |  |  | (56) |  |  |  |  |
Total non-operating expense, net | (249) |  |  | (492) |  |  |  |  |
Income Before Income Taxes | 320 |  |  | 122 |  |  |  |  |
Income Tax Provision | (80) |  |  | (85) |  |  |  |  |
Net Income | $ | 240 |  |  | $ | 37 |  |  |  |  |
Basic Earnings Per Share | $ | 0.37 |  |  | $ | 0.06 |  |  |  |  |
Diluted Earnings Per Share | $ | 0.37 |  |  | $ | 0.06 |  |  |  |  |
Comprehensive Income | $ | 281 |  |  | $ | 89 |  |  |  |  |
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 4

Financial Statements
DELTA AIR LINES, INC.
Condensed Consolidated Statements of Cash Flows
(Unaudited)

| Three Months Ended March 31,
(in millions) | 2025 |  | 2024
Net Cash Provided by Operating Activities | $ | 2,378 |  |  | $ | 2,408 |
Cash Flows from Investing Activities: |  |  |
Property and equipment additions: |  |  |
Flight equipment, including advance payments | (987) |  |  | (883) |
Ground property and equipment, including technology | (237) |  |  | (310) |
Redemption of short-term investments | — |  |  | 546 |
Other, net | — |  |  | 10 |
Net cash used in investing activities | (1,224) |  |  | (637) |
Cash Flows from Financing Activities: |  |  |
Payments on debt and finance lease obligations | (531) |  |  | (712) |
Cash dividends | (99) |  |  | (64) |
Other, net | (4) |  |  | (11) |
Net cash used in financing activities | (634) |  |  | (787) |
Net Increase in Cash, Cash Equivalents and Restricted Cash Equivalents | 520 |  |  | 984 |
Cash, cash equivalents and restricted cash equivalents at beginning of period | 3,421 |  |  | 3,395 |
Cash, cash equivalents and restricted cash equivalents at end of period | $ | 3,941 |  |  | $ | 4,379 |
Non-Cash Transactions: |  |  |
Right-of-use assets acquired or modified under operating leases | $ | 75 |  |  | $ | (34) |
Flight and ground equipment acquired or modified under finance leases | — |  |  | 6 |
Operating leases converted to finance leases | 149 |  |  | — |
The following table provides a reconciliation of cash, cash equivalents and restricted cash equivalents reported within the Consolidated Balance Sheets to the total of the same such amounts shown above:
| March 31,
(in millions) | 2025 |  | 2024
Current assets: |  |  |
Cash and cash equivalents | $ | 3,711 |  |  | $ | 3,877 |
Restricted cash included in prepaid expenses and other | 89 |  |  | 126 |
Noncurrent assets: |  |  |
Restricted cash included in other noncurrent assets | 141 |  |  | 376 |
Total cash, cash equivalents and restricted cash equivalents | $ | 3,941 |  |  | $ | 4,379 |
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 5

Financial Statements
DELTA AIR LINES, INC.
Consolidated Statements of Stockholders' Equity
(Unaudited)

| Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Treasury Stock |
(in millions, except per share data) | Shares | Amount | Shares | Amount | Total
Balance at December 31, 2024 | 655 |  | $ | — |  | $ | 11,740 |  | $ | 8,783 |  | $ | (4,979) |  | 8 |  | $ | (251) |  | $ | 15,293 |
Net income | — |  | — |  | — |  | 240 |  | — |  | — |  | — |  | 240 |
Dividends declared ($0.15 per share) | — |  | — |  | — |  | (98) |  | — |  | — |  | — |  | (98) |
Other comprehensive income | — |  | — |  | — |  | — |  | 41 |  | — |  | — |  | 41 |
Common stock issued for employee equity awards(1) | — |  | — |  | (51) |  | — |  | — |  | (1) |  | 13 |  | (38) |
Stock options exercised | — |  | — |  | 9 |  | — |  | — |  | — |  | — |  | 9 |
Warrants exercised | 5 |  | — |  | — |  | — |  | — |  | — |  | — |  | — |
Balance at March 31, 2025 | 660 |  | $ | — |  | $ | 11,698 |  | $ | 8,925 |  | $ | (4,938) |  | 7 |  | $ | (238) |  | $ | 15,447 |

(1)Treasury shares were withheld for payment of taxes, at a weighted average price per share of $67.95 in the March 2025 quarter.

| Common Stock | Additional Paid-In Capital | Retained Earnings | Accumulated Other Comprehensive Loss | Treasury Stock |
(in millions, except per share data) | Shares | Amount | Shares | Amount | Total
Balance at December 31, 2023 | 655 |  | $ | — |  | $ | 11,641 |  | $ | 5,650 |  | $ | (5,845) |  | 11 |  | $ | (341) |  | $ | 11,105 |
Net income | — |  | — |  | — |  | 37 |  | — |  | — |  | — |  | 37 |
Dividends declared ($0.10 per share) | — |  | — |  | — |  | (65) |  | — |  | — |  | — |  | (65) |
Other comprehensive income | — |  | — |  | — |  | — |  | 52 |  | — |  | — |  | 52 |
Common stock issued for employee equity awards(1) | 2 |  | — |  | 47 |  | — |  | — |  | 1 |  | (25) |  | 22 |
Balance at March 31, 2024 | 657 |  | $ | — |  | $ | 11,688 |  | $ | 5,622 |  | $ | (5,793) |  | 12 |  | $ | (366) |  | $ | 11,151 |

(1)Treasury shares were withheld for payment of taxes, at a weighted average price per share of $39.83 in the March 2024 quarter.
The accompanying notes are an integral part of these Condensed Consolidated Financial Statements.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 6

Notes to the Condensed Consolidated Financial Statements
DELTA AIR LINES, INC.
Notes to the Condensed Consolidated Financial Statements
(Unaudited)
NOTE 1. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
Basis of Presentation
The accompanying unaudited Condensed Consolidated Financial Statements include the accounts of Delta Air Lines, Inc. and our consolidated subsidiaries, and have been prepared in accordance with accounting principles generally accepted in the United States ("GAAP") for interim financial information. Consistent with these requirements, this Form 10-Q does not include all the information required by GAAP for complete financial statements. As a result, this Form 10-Q should be read in conjunction with the Consolidated Financial Statements and accompanying Notes in our Form 10-K for the year ended December 31, 2024.
Management believes the accompanying unaudited Condensed Consolidated Financial Statements reflect all adjustments, including normal recurring items, considered necessary for a fair statement of results for the interim periods presented.
Due to seasonal variations in the demand for air travel, the volatility of aircraft fuel prices and other factors, operating results for the three months ended March 31, 2025 are not necessarily indicative of operating results for the entire year.
We reclassified certain prior period amounts to conform to the current period presentation. Unless otherwise noted, all amounts disclosed are stated before consideration of income taxes.
NOTE 2. REVENUE RECOGNITION
Passenger Revenue

| Three Months Ended March 31, |  |  |  |  |  |
(in millions) | 2025 | 2024 |  |  |  |  |  |  |  |  |
Ticket | $ | 10,068 |  | $ | 9,833 |  |  |  |  |  |  |  |  |  |
Loyalty travel awards | 940 |  | 844 |  |  |  |  |  |  |  |  |  |
Travel-related services | 472 |  | 454 |  |  |  |  |  |  |  |  |  |
Passenger revenue | $ | 11,480 |  | $ | 11,131 |  |  |  |  |  |  |  |  |  |

Ticket
We recognized approximately $4.1 billion and $3.9 billion in passenger revenue during the three months ended March 31, 2025 and 2024, respectively, that had been recorded in our air traffic liability balance at the beginning of those periods.
Loyalty Travel Awards
Loyalty travel awards revenue is related to the redemption of mileage credits ("miles") for air travel. Our SkyMiles loyalty program allows customers to earn miles by flying on Delta, Delta Connection and other airlines that participate in the loyalty program. Customers can also earn miles through participating companies, such as credit card, retail, ridesharing, car rental and hotel companies, who purchase miles from us. Our most significant contract to sell miles relates to our co-brand credit card relationship with American Express. During the three months ended March 31, 2025 and 2024, total cash sales from marketing agreements related to our loyalty program were $1.9 billion and $1.8 billion, respectively, which are allocated to travel and other performance obligations.
Current Activity of the Loyalty Program. Miles are combined in one homogeneous pool and are not separately identifiable. Therefore, revenue is comprised of miles that were part of the loyalty program deferred revenue balance at the beginning of the period as well as miles that were issued during the period. The timing of mile redemptions can vary widely; however, the majority of miles have historically been redeemed within two years of being earned.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 7

Notes to the Condensed Consolidated Financial Statements
The table below presents the activity of the current and noncurrent loyalty program deferred revenue and includes miles earned through travel and miles sold to participating companies, which are primarily through marketing agreements.

Loyalty program activity
(in millions) |  | 2025 | 2024
Balance at January 1 |  | $ | 8,826 |  | $ | 8,420 |
Miles earned |  | 1,152 |  | 1,021 |
Miles redeemed for air travel |  | (940) |  | (844) |
Miles redeemed for non-air travel and other |  | (60) |  | (56) |
Balance at March 31 |  | $ | 8,978 |  | $ | 8,541 |

Travel-Related Services
Travel-related services are primarily composed of services performed in conjunction with a passenger’s flight and include baggage fees, administrative fees and on-board sales. We recognize revenue for these services when the related transportation service is provided.
Other Revenue

| Three Months Ended March 31, |  |  |  |  |  |
(in millions) | 2025 | 2024 |  |  |  |  |  |  |  |  |
Refinery | $ | 1,062 |  | $ | 1,185 |  |  |  |  |  |  |  |  |  |
Loyalty program | 807 |  | 795 |  |  |  |  |  |  |  |  |  |
Ancillary businesses | 189 |  | 180 |  |  |  |  |  |  |  |  |  |
Miscellaneous | 294 |  | 279 |  |  |  |  |  |  |  |  |  |
Other revenue | $ | 2,352 |  | $ | 2,439 |  |  |  |  |  |  |  |  |  |

Revenue by Geographic Region
Operating revenue for the airline segment is recognized in a specific geographic region based on the origin, flight path and destination of each flight segment. A significant portion of the refinery segment's revenues typically consists of fuel sales to support the airline, which is eliminated in the Condensed Consolidated Financial Statements. The remaining operating revenue for the refinery segment is included in the domestic region. Our passenger and operating revenue by geographic region is summarized in the following tables:

Passenger revenue by geographic region
| Three Months Ended March 31, |  |  |  |  |  |
(in millions) | 2025 | 2024 |  |  |  |  |  |  |  |  |
Domestic | $ | 8,101 |  | $ | 7,983 |  |  |  |  |  |  |  |  |  |
Atlantic | 1,372 |  | 1,305 |  |  |  |  |  |  |  |  |  |
Latin America | 1,334 |  | 1,265 |  |  |  |  |  |  |  |  |  |
Pacific | 673 |  | 578 |  |  |  |  |  |  |  |  |  |
Total | $ | 11,480 |  | $ | 11,131 |  |  |  |  |  |  |  |  |  |

Operating revenue by geographic region
| Three Months Ended March 31, |  |  |  |  |  |
(in millions) | 2025 | 2024 |  |  |  |  |  |  |  |  |
Domestic | $ | 10,055 |  | $ | 10,031 |  |  |  |  |  |  |  |  |  |
Atlantic | 1,646 |  | 1,581 |  |  |  |  |  |  |  |  |  |
Latin America | 1,523 |  | 1,442 |  |  |  |  |  |  |  |  |  |
Pacific | 816 |  | 694 |  |  |  |  |  |  |  |  |  |
Total | $ | 14,040 |  | $ | 13,748 |  |  |  |  |  |  |  |  |  |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 8

Notes to the Condensed Consolidated Financial Statements
NOTE 3. FAIR VALUE MEASUREMENTS
Assets/(Liabilities) Measured at Fair Value on a Recurring Basis

(in millions) | March 31, 2025 | Level 1 | Level 2 | Level 3
Cash equivalents | $ | 2,343 |  | $ | 2,343 |  | $ | — |  | $ | — |
Restricted cash equivalents | 230 |  | 230 |  | — |  | — |
Long-term investments and related | 2,340 |  | 2,049 |  | 171 |  | 120 |
Fuel hedge contracts | (39) |  | — |  | (39) |  | — |

(in millions) | December 31, 2024 | Level 1 | Level 2 | Level 3
Cash equivalents | $ | 1,619 |  | $ | 1,619 |  | $ | — |  | $ | — |
Restricted cash equivalents | 351 |  | 351 |  | — |  | — |
Long-term investments and related | 2,372 |  | 2,085 |  | 160 |  | 127 |
Fuel hedge contracts | (17) |  | — |  | (17) |  | — |

Cash Equivalents and Restricted Cash Equivalents. Cash equivalents generally consist of money market funds. Restricted cash equivalents generally consist of money market funds, time deposits, commercial paper and negotiable certificates of deposit. Restricted cash equivalents primarily relate to proceeds from debt issued to finance, among other things, a portion of the construction costs for our new terminal facilities at New York's LaGuardia Airport as well as certain self-insurance obligations and airport commitments. Restricted cash equivalents are recorded in other noncurrent assets and prepaid expenses and other on our Consolidated Balance Sheet ("balance sheet"). The fair value of these cash equivalents is based on a market approach using prices generated by market transactions involving identical or comparable assets.
Long-Term Investments and Related. Our long-term investments measured at fair value primarily consist of equity investments, which are valued based on market prices or other observable transactions and inputs, and are recorded in equity investments on our balance sheet. Our equity investments in private companies are classified as Level 3 in the fair value hierarchy as their equity is not traded on a public exchange and our valuations incorporate certain unobservable inputs, including non-public equity issuances. Fair value measurement using unobservable inputs is inherently uncertain, and a change in significant inputs could result in different fair values. See Note 4, "Investments," for further information on our equity investments.
Fuel Hedge Contracts. Our derivative contracts to hedge the financial risk from changing fuel prices are related to inventory at our wholly-owned subsidiary, Monroe Energy, LLC ("Monroe"). We recognized losses of $20 million on our fuel hedge contracts in aircraft fuel and related taxes on our Condensed Consolidated Statements of Operations and Comprehensive Income ("income statement") for the three months ended March 31, 2025, compared to losses of $96 million for the three months ended March 31, 2024. The losses recognized during the first three months of 2025 were composed of $22 million of mark-to-market losses and $2 million of settlement gains on contracts. Gains and losses on settled contracts are reflected within Monroe's operating results. See Note 9, "Segments," for further information on our refinery segment.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 9

Notes to the Condensed Consolidated Financial Statements
NOTE 4. INVESTMENTS

Equity investments ownership interest and carrying value
| Accounting Treatment |  | Ownership Interest |  | Carrying Value
(in millions) |  |  | March 31, 2025 | December 31, 2024 |  | March 31, 2025 | December 31, 2024
Air France-KLM | Fair Value |  | 3 | % | 3 | % |  | $ | 68 |  | $ | 62 |
China Eastern | Fair Value |  | 2 | % | 2 | % |  | 151 |  | 155 |
Grupo Aeroméxico | Equity Method |  | 20 | % | 20 | % |  | 367 |  | 354 |
Hanjin KAL | Fair Value(1) |  | 15 | % | 15 | % |  | 547 |  | 507 |
LATAM | Fair Value |  | 10 | % | 10 | % |  | 950 |  | 837 |
Unifi Aviation | Equity Method |  | 49 | % | 49 | % |  | 143 |  | 146 |
Wheels Up | Fair Value(2) |  | 38 | % | 38 | % |  | 266 |  | 435 |
Other investments | Various |  |  |  |  | 327 |  | 350 |
Equity investments |  |  |  |  |  | $ | 2,819 |  | $ | 2,846 |

(1)At March 31, 2025, we held 14.8% of the outstanding shares (including common and preferred), and 14.9% of the common shares, of Hanjin KAL.
(2)Our voting rights with respect to Wheels Up are capped at 29.9%.
NOTE 5. DEBT

Summary of outstanding debt by category
(in millions) | Maturity Dates | Interest Rate(s) Per Annum at March 31, 2025 | March 31, 2025 | December 31, 2024
Unsecured Payroll Support Program Loans(1) | 2030 | to | 2031 | 1.00% | $ | 3,496 |  | $ | 3,496 |
Unsecured notes | 2026 | to | 2029 | 3.75% | to | 7.38% | 1,575 |  | 1,575 |
Financing arrangements secured by SkyMiles assets: |  |  |  |  |  |  |  |
SkyMiles Notes(2) | 2025 | to | 2028 | 4.50% | and | 4.75% | 3,833 |  | 3,970 |
SkyMiles Term Loan(2)(3) | 2025 | to | 2027 | 8.04% | 719 |  | 784 |
NYTDC Special Facilities Revenue Bonds(2) | 2026 | to | 2045 | 4.00% | to | 6.00% | 3,522 |  | 3,591 |
Financing arrangements secured by aircraft: |  |  |  |
Certificates(2) | 2025 | to | 2028 | 2.00% | to | 8.00% | 984 |  | 992 |
Notes(2)(3) | 2025 | to | 2033 | 6.55% | to | 6.61% | 85 |  | 87 |
Financing arrangements secured by slots, gates and/or routes: |  |  |  |  |  |  |  |
Senior Secured Notes | 2025 | 7.00% | 812 |  | 812 |
Other financings | 2030 | 5.00% | 66 |  | 66 |
Corporate Revolving Credit Facility(3) | 2026 | to | 2028 | Undrawn | — |  | — |
Other revolving credit facilities(3) | 2025 | to | 2026 | Undrawn | — |  | — |
Total secured and unsecured debt |  |  |  |  |  |  | $ | 15,092 |  | $ | 15,373 |
Unamortized (discount)/premium and debt issue cost, net and other |  |  |  | (16) |  | (26) |
Total debt |  |  |  |  |  |  | $ | 15,076 |  | $ | 15,347 |
Less: current maturities |  |  |  |  |  |  | (2,644) |  | (1,801) |
Total long-term debt |  |  |  |  |  |  | $ | 12,432 |  | $ | 13,546 |

(1)Interest rates on the Payroll Support Program loans are 1.00% for the first five years and the applicable SOFR plus 2.00% in the final five years. The applicable interest rates will begin to adjust for each loan in April 2025, January 2026 and April 2026.
(2)Due in installments during the years shown above.
(3)Certain financings are comprised of variable rate debt. All variable rates are equal to SOFR (generally subject to a floor) or another index rate, plus a specified margin.
Availability Under Revolving Credit Facilities
As of March 31, 2025, we had approximately $3.1 billion undrawn and available under our revolving credit facilities.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 10

Notes to the Condensed Consolidated Financial Statements
Fair Value of Debt
Market risk associated with our fixed- and variable-rate debt relates to the potential reduction in fair value and negative impact to future earnings, respectively, from an increase in interest rates. The fair value of debt shown below is principally based on reported market values, recently completed market transactions and estimates based on interest rates, maturities, credit risk and underlying collateral. Debt is primarily classified as Level 1 or 2 within the fair value hierarchy.

Fair value of outstanding debt
(in millions) | March 31, 2025 | December 31, 2024
Net carrying amount | $ | 15,076 |  | $ | 15,347 |
Fair value | $ | 15,100 |  | $ | 15,300 |

Covenants
Our debt agreements contain various affirmative, negative and financial covenants. We were in compliance with the covenants in our debt agreements at March 31, 2025.
NOTE 6. EMPLOYEE BENEFIT PLANS
We sponsor defined benefit and defined contribution pension plans, healthcare plans and disability and survivorship plans for eligible employees and retirees and their eligible family members.

Employee benefit plans net periodic cost
| Pension Benefits |  | Other Postretirement and Postemployment Benefits
(in millions) | 2025 | 2024 |  | 2025 | 2024
Three Months Ended March 31, |  |  |  |  |
Service cost(1) | $ | 4 |  | $ | 3 |  |  | $ | 33 |  | $ | 23 |
Interest cost | 208 |  | 201 |  |  | 45 |  | 45 |
Expected return on plan assets | (267) |  | (263) |  |  | — |  | (1) |
Amortization of prior service credit | — |  | — |  |  | (1) |  | (1) |
Recognized net actuarial loss | 50 |  | 62 |  |  | 5 |  | 5 |
Net periodic cost | $ | (5) |  | $ | 3 |  |  | $ | 82 |  | $ | 71 |

(1)Service cost relates to the market based cash balance plan. There is no service cost associated with traditional frozen defined benefit plans.
Service cost is recorded in salaries and related costs in our income statement, while all other components are recorded within miscellaneous, net under non-operating expense.
We also sponsor defined benefit pension plans for eligible employees in certain foreign countries which have immaterial obligations. These plans are not included in the net periodic cost table above.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 11

Notes to the Condensed Consolidated Financial Statements
NOTE 7. COMMITMENTS AND CONTINGENCIES
Aircraft Purchase Commitments
Our future aircraft purchase commitments totaled approximately $17.6 billion at March 31, 2025.

Aircraft purchase commitments(1)
(in millions) | Total
Nine months ending December 31, 2025 | $ | 2,590 |
2026 | 3,750 |
2027 | 5,750 |
2028 | 3,880 |
2029 | 1,260 |
Thereafter | 370 |
Total | $ | 17,600 |

(1)The timing of these commitments is based on our contractual agreements with the aircraft manufacturers and remains uncertain due to supply chain, manufacturing and regulatory constraints. During the March 2025 quarter, Delta was notified that certain aircraft deliveries would be delayed from 2026 to 2027. These new delivery dates are reflected in the table above.
Our future aircraft purchase commitments included the following aircraft at March 31, 2025:

Aircraft purchase commitments by fleet type |
Aircraft Type | Purchase Commitments
A220-300 | 69 |
A321-200neo | 82 |
A330-900neo | 6 |
A350-900 | 8 |
A350-1000 | 20 |
B-737-10 | 100 |
Total | 285 |

Legal Contingencies
We are involved in various legal proceedings related to employment practices, environmental issues, commercial disputes, antitrust and other regulatory matters concerning our business. We record liabilities for losses from legal proceedings when we determine that it is probable that the outcome in a legal proceeding will be unfavorable and the amount of loss can be reasonably estimated. Although the outcome of the legal proceedings in which we are involved cannot be predicted with certainty, we believe that the resolution of current matters will not have a material adverse effect on our Condensed Consolidated Financial Statements.
NOTE 8. ACCUMULATED OTHER COMPREHENSIVE LOSS

Components of accumulated other comprehensive loss
(in millions) | Pension and Other Benefit Liabilities | Other | Tax Effect | Total
Balance at January 1, 2025 | $ | (5,557) |  | $ | 42 |  | $ | 536 |  | $ | (4,979) |
Changes in value | — |  | 1 |  | — |  | 1 |
Reclassifications into earnings(1) | 52 |  | — |  | (12) |  | 40 |
Balance at March 31, 2025 | $ | (5,505) |  | $ | 43 |  | $ | 524 |  | $ | (4,938) |

Balance at January 1, 2024 | $ | (6,681) |  | $ | 40 |  | $ | 796 |  | $ | (5,845) |
Reclassifications into earnings(1) | 66 |  | — |  | (14) |  | 52 |
Balance at March 31, 2024 | $ | (6,615) |  | $ | 40 |  | $ | 782 |  | $ | (5,793) |

(1)Amounts reclassified from accumulated other comprehensive loss for pension and other benefit liabilities are recorded in miscellaneous, net in non-operating expense in our income statement.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 12

Notes to the Condensed Consolidated Financial Statements
NOTE 9. SEGMENTS
Refinery Operations
Our refinery segment operates for the benefit of the airline segment by providing jet fuel to the airline segment from its own production and from jet fuel obtained through agreements with third parties. The refinery's production consists of jet fuel, as well as non-jet fuel products. We use several counterparties to exchange non-jet fuel products produced by the refinery for jet fuel consumed in our airline operations.
Segment Reporting
Segment results are prepared based on our internal accounting methods described below, with reconciliations to consolidated amounts in accordance with GAAP. Our segments are not designed to measure operating income or loss directly related to the products and services included in each segment on a stand-alone basis.

Financial information by segment
(in millions) | Airline | Refinery |  | Intersegment Sales/Other |  | Consolidated
Three Months Ended March 31, 2025 |  |  |  |  |  |
Operating revenue | $ | 12,978 |  | $ | 1,698 |  |  | $ | (636) |  | (1) | $ | 14,040 |
Airline salaries and related costs | 4,083 |  |  |  |  |  |
Aircraft fuel and related costs | 2,410 |  |  |  |  |  |
Refinery cost of goods sold(2) |  | 1,562 |  |  |  |  |
Depreciation and amortization | 607 |  | 28 |  |  |  |  |
Other segment items(3) | 5,308 |  | 109 |  |  |  |  |
Operating income/(loss)(4) | 570 |  | (1) |  |  |  |  | 569 |
Interest expense, net | 179 |  | 1 |  |  | (1) |  |  | 179 |
Other non-operating expense | 70 |  |  |  |  |  | 70 |
Income/(loss) before income taxes | 321 |  | (2) |  |  | 1 |  |  | 320 |
Total assets, end of period | 75,043 |  | 2,359 |  |  | (60) |  |  | 77,342 |
Capital expenditures | 1,187 |  | 37 |  |  |  |  | 1,224 |
Three Months Ended March 31, 2024 |  |  |  |  |  |
Operating revenue | $ | 12,563 |  | $ | 2,049 |  |  | $ | (864) |  | (1) | $ | 13,748 |
Airline salaries and related costs | 3,791 |  |  |  |  |  |
Aircraft fuel and related costs | 2,598 |  |  |  |  |  |
Refinery cost of goods sold(2) |  | 1,873 |  |  |  |  |
Depreciation and amortization | 615 |  | 27 |  |  |  |  |
Other segment items(3) | 4,994 |  | 100 |  |  |  |  |
Operating income(4) | 565 |  | 49 |  |  |  |  | 614 |
Interest expense, net | 205 |  | 5 |  |  | (5) |  |  | 205 |
Other non-operating expense | 287 |  |  |  |  |  | 287 |
Income before income taxes | 73 |  | 44 |  |  | 5 |  |  | 122 |
Total assets, end of period | 72,875 |  | 2,123 |  |  | (29) |  |  | 74,969 |
Capital expenditures | 1,178 |  | 15 |  |  |  |  | 1,193 |

(1)See table below for detail of the intersegment operating revenue amounts.
(2)Refinery cost of goods sold are included within aircraft fuel and related taxes and ancillary businesses and refinery in our income statement.
(3)The nature of other segment items for the airline segment are shown on our income statement and for the refinery segment include salaries and related costs, maintenance, utilities and other expenses.
(4)Refinery segment operating results are included within aircraft fuel and related taxes in our income statement.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 13

Notes to the Condensed Consolidated Financial Statements

Intersegment Sales/Other
| Three Months Ended March 31, |  |
(in millions) | 2025 | 2024 |  |  |
Sales to airline segment (1) | $ | (260) |  | $ | (386) |  |  |  |
Exchanged products (2) | (341) |  | (439) |  |  |  |
Sales of refined products | (35) |  | (39) |  |  |  |
Total operating revenue intersegment sales/other | $ | (636) |  | $ | (864) |  |  |  |

(1)Represents transfers, valued on a market price basis, from the refinery to the airline segment for use in airline operations. We determine market price for jet fuel from the refinery by reference to the market index for the primary delivery location, which is New York Harbor.
(2)Represents value of products delivered under our exchange agreements, as discussed above, determined on a market price basis.
NOTE 10. EARNINGS PER SHARE
We calculate basic earnings per share by di viding net income by the weighted average number of common shares outstanding, excluding restricted shares. We calculate diluted earnings per share by dividing net income by the weighted average number of common shares outstanding plus the dilutive effect of outstanding share-based instruments, including stock options, restricted stock awards and warrants. Ant idilutive common stock equivalents excluded from the diluted earnings per share calculation are not material. The following table shows the computation of basic and diluted earnings per share:

Basic and diluted earnings per share
| Three Months Ended March 31, |  |
(in millions, except per share data) | 2025 | 2024 |  |  |
Net income | $ | 240 |  | $ | 37 |  |  |  |
Basic weighted average shares outstanding | 644 |  | 640 |  |  |  |
Dilutive effect of share-based instruments | 8 |  | 5 |  |  |  |
Diluted weighted average shares outstanding | 652 |  | 645 |  |  |  |
Basic earnings per share | $ | 0.37 |  | $ | 0.06 |  |  |  |
Diluted earnings per share | $ | 0.37 |  | $ | 0.06 |  |  |  |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 14

Item 2. MD&A
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our Condensed Consolidated Financial Statements and the related notes and other financial information included elsewhere in this Quarterly Report on Form 10-Q and our audited Consolidated Financial Statements and related notes included in our 2024 Form 10-K.
March 2025 Quarter Financial Highlights
Our operating income for the March 2025 quarter was $569 million, a decrease of $45 million compared to the March 2024 quarter.
Revenue. Compared to the March 2024 quarter, our total revenue increased $292 million, or 2%, due to strength in demand for premium products and long-haul international travel and a 4% increase in capacity. Passenger revenue increased $349 million compared to the March 2024 quarter on an increase in revenue for premium products and loyalty travel awards. Total revenue, adjusted (a non-GAAP financial measure, which excludes revenue related to refinery sales to third parties) increased in the March 2025 quarter by $415 million, or 3.3%, compared to the March 2024 quarter.
Operating Expense. Total operating expense in the March 2025 quarter increased $337 million, or 3%, compared to the March 2024 quarter, primarily due to costs associated with the 4% increase in capacity, higher employee costs from increased wages, and increased landing fees and other rents partially offset by lower aircraft fuel and related taxes. Total operating expense, adjusted (a non-GAAP financial measure, which primarily excludes expenses related to refinery sales to third parties) in the March 2025 quarter increased $465 million, or 4%, compared to the March 2024 quarter.
Our total operating cost per available seat mile ("CASM") decreased 2% compared to the March 2024 quarter, while non-fuel unit cost ("CASM-Ex", a non-GAAP financial measure) increased 2.6%.
Cash Flow. Our cash, cash equivalents, short-term investments and aggregate undrawn principal amount available under our revolving credit facilities ("liquidity") as of March 31, 2025 was $6.8 billion.
During the March 2025 quarter, operating activities generated $2.4 billion, primarily from ticket sales and the sale of SkyMiles to our partners. Total cash sales to American Express were $1.9 billion in the March 2025 quarter, an increase of approximately 13% compared to the March 2024 quarter.
Cash flows used in investing activities during the quarter totaled $1.2 billion primarily from capital expenditures. These operating and investing activities yielded free cash flow (a non-GAAP financial measure) of $1.3 billion in the March 2025 quarter. Additionally, we had cash outflows of $531 million related to repayments of our debt and finance leases.
The non-GAAP financial measures referenced above for total revenue, adjusted, operating expense, adjusted, CASM-Ex and free cash flow are defined and reconciled in "Supplemental Information" below.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 15

Item 2. MD&A - Results of Operations
Results of Operations - Three Months Ended March 31, 2025 and 2024
Total Operating Revenue

| Three Months Ended March 31, | Increase (Decrease) | % Increase (Decrease) |
(in millions)(1) | 2025 | 2024 |
Ticket - Main cabin | $ | 5,361 |  | $ | 5,425 |  |  | $ | (64) |  | (1) | % |
Ticket - Premium products | 4,707 |  | 4,408 |  |  | 299 |  | 7 | % |
Loyalty travel awards | 940 |  | 844 |  |  | 96 |  | 11 | % |
Travel-related services | 472 |  | 454 |  |  | 18 |  | 4 | % |
Passenger revenue | $ | 11,480 |  | $ | 11,131 |  |  | $ | 349 |  | 3 | % |
Cargo | 208 |  | 178 |  |  | 30 |  | 17 | % |
Other | 2,352 |  | 2,439 |  |  | (87) |  | (4) | % |
Total operating revenue | $ | 14,040 |  | $ | 13,748 |  |  | $ | 292 |  | 2 | % |
TRASM (cents) | 20.53 | ¢ | 20.98 | ¢ |  | (0.45) | ¢ | (2) | % |
Third-party refinery sales | (1.55) |  | (1.81) |  |  | 0.26 |  | (14) | % |
TRASM, adjusted(2) | 18.97 | ¢ | 19.17 | ¢ |  | (0.20) | ¢ | (1.0) | % |

(1)Total amounts in the table above may not calculate exactly due to rounding.
(2)Total Revenue per available seat mile ("TRASM"), adjusted is a non-GAAP financial measure. For additional information on adjustments to TRASM, see "Supplemental Information" below.
Compared to the March 2024 quarter, total revenue increased $292 million, or 2%, due to strength in demand for premium products and long-haul international travel and a 4% increase in capacity.
See "Refinery Segment" below for additional details on the refinery's operations, including third party refinery sales.
Passenger Revenue by Geographic Region

|  | Increase (Decrease) vs. Three Months Ended March 31, 2024
(in millions) | Three Months Ended March 31, 2025 | Passenger Revenue | RPMs (Traffic) | ASMs (Capacity) | Passenger Mile Yield | PRASM | Load Factor
Domestic | $ | 8,101 |  | 1 | % | — | % | 4 | % | 1 | % | (3) | % | (3) |  | pts
Atlantic | 1,372 |  | 5 | % | — | % | (3) | % | 5 | % | 8 | % | 2 |  | pts
Latin America | 1,334 |  | 5 | % | 6 | % | 8 | % | — | % | (2) | % | (1) |  | pt
Pacific | 673 |  | 16 | % | 25 | % | 16 | % | (7) | % | 1 | % | 6 |  | pts
Total | $ | 11,480 |  | 3 | % | 3 | % | 4 | % | — | % | (1) | % | (1.3) |  | pts

Domestic
Domestic passenger revenue increased 1% in the March 2025 quarter compared to the March 2024 quarter on a 4% increase in capacity. Domestic revenue growth was primarily driven by strength in demand for premium products, which was mitigated by softness in main cabin demand on reduced consumer and corporate confidence caused by increased macro uncertainty, particularly toward the end of the quarter.
International
International passenger revenue for the March 2025 quarter increased compared to the March 2024 quarter in each geographic region. The Atlantic region continues to experience strong demand for travel. Our Latin America and Pacific regions revenue reflects the continued maturation of our joint ventures and network restoration.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 16

Item 2. MD&A - Results of Operations
Other Revenue

| Three Months Ended March 31, | Increase (Decrease) | % Increase (Decrease) |
(in millions) | 2025 | 2024 |
Refinery | $ | 1,062 |  | $ | 1,185 |  |  | $ | (123) |  | (10) | % |
Loyalty program | 807 |  | 795 |  |  | 12 |  | 2 | % |
Ancillary businesses | 189 |  | 180 |  |  | 9 |  | 5 | % |
Miscellaneous | 294 |  | 279 |  |  | 15 |  | 5 | % |
Other revenue | $ | 2,352 |  | $ | 2,439 |  |  | $ | (87) |  | (4) | % |

Refinery. Refinery sales to third parties decreased $123 million compared to the March 2024 quarter. See "Refinery Segment" below for additional details on the refinery's operations, including third party refinery sales.
Loyalty Program. This relates to revenues from brand usage by third parties and other performance obligations embedded in miles sold, as well as redemption of miles for non-air travel and other awards. These revenues are mainly driven by customer spend on American Express cards and new cardholder acquisitions.
Ancillary Businesses. This includes revenues from aircraft maintenance services we provide to third parties and our vacation package operations.
Miscellaneous. This is primarily composed of revenues related to lounge access, including access provided to certain American Express cardholders, codeshare agreements and certain other commercial relationships.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 17

Item 2. MD&A - Results of Operations
Operating Expense

| Three Months Ended March 31, | Increase (Decrease) | % Increase (Decrease) |
(in millions) | 2025 | 2024 |
Salaries and related costs | $ | 4,083 |  | $ | 3,791 |  |  | $ | 292 |  | 8 | % |
Aircraft fuel and related taxes | 2,410 |  | 2,598 |  |  | (188) |  | (7) | % |
Ancillary businesses and refinery | 1,250 |  | 1,370 |  |  | (120) |  | (9) | % |
Contracted services | 1,121 |  | 1,024 |  |  | 97 |  | 9 | % |
Landing fees and other rents | 851 |  | 748 |  |  | 103 |  | 14 | % |
Aircraft maintenance materials and outside repairs | 646 |  | 679 |  |  | (33) |  | (5) | % |
Regional carrier expense | 613 |  | 550 |  |  | 63 |  | 11 | % |
Depreciation and amortization | 607 |  | 615 |  |  | (8) |  | (1) | % |
Passenger commissions and other selling expenses | 552 |  | 550 |  |  | 2 |  | — | % |
Passenger service | 430 |  | 413 |  |  | 17 |  | 4 | % |
Aircraft rent | 137 |  | 136 |  |  | 1 |  | 1 | % |
Profit sharing | 124 |  | 125 |  |  | (1) |  | (1) | % |
Other | 647 |  | 535 |  |  | 112 |  | 21 | % |
Total operating expense | $ | 13,471 |  | $ | 13,134 |  |  | $ | 337 |  | 3 | % |

Salaries and Related Costs. The increase in salaries and related costs primarily resulted from the implementation of base pay increases for eligible employees of 5% effective June 1, 2024 and 4% for Delta pilots on January 1, 2025.
Aircraft Fuel and Related Taxes. Aircraft fuel and related taxes decreased $188 million compared to the March 2024 quarter primarily due to a 13% decrease in the market price of jet fuel offset by a 5% increase in consumption on a 4% increase in capacity. We expect that fuel consumption for the remainder of 2025 will increase compared to 2024 aligned with capacity, partially offset by improvements in the fuel efficiency of our fleet. The refinery generated a small operating loss resulting in no incremental cost per gallon compared to a benefit of five cents per gallon in the March 2024 quarter. We expect jet fuel prices to remain volatile.
See "Refinery Segment" below for additional details on the refinery's operations.

Fuel expense and average price per gallon
|  |  |  |  | Average Price Per Gallon
| Three Months Ended March 31, | Increase (Decrease) | Three Months Ended March 31, | Increase (Decrease)
(in millions, except per gallon data) | 2025 | 2024 |  | 2025 | 2024 |
Fuel purchase cost(1) | $ | 2,387 |  | $ | 2,620 |  |  | $ | (233) |  | $ | 2.45 |  | $ | 2.81 |  |  | $ | (0.36) |
Fuel hedge impact | 22 |  | 27 |  |  | (5) |  | 0.02 |  | 0.03 |  |  | (0.01) |
Refinery segment impact | 1 |  | (49) |  |  | 50 |  | — |  | (0.05) |  |  | 0.05 |
Total fuel expense | $ | 2,410 |  | $ | 2,598 |  |  | $ | (188) |  | $ | 2.47 |  | $ | 2.79 |  |  | $ | (0.32) |

(1)Market price for jet fuel at airport locations, including related taxes and transportation costs.
Ancillary Businesses and Refinery. Ancillary businesses and refinery includes expenses associated with refinery sales to third parties, aircraft maintenance services we provide to third parties and our vacation package operations. Refinery sales to third parties decreased $123 million compared to the March 2024 quarter. See "Refinery Segment" below for additional details on the refinery's operations, including third party refinery sales.
Landing Fees and Other Rents. The increase in landing fees and other rents resulted from higher rates charged by airports following extensive redevelopment projects at numerous facilities and more flights compared to the March 2024 quarter.
Regional Carrier Expense. The increase in regional carrier expense primarily resulted from higher volume of regional flights.
Other. The increase in other is primarily due to higher volume-related expenses associated with increased capacity, such as flight crew and other employee travel and incidental costs.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 18

Item 2. MD&A - Non-Operating Results
Non-Operating Results

| Three Months Ended March 31, |  | Favorable (Unfavorable) |  |  |
(in millions) | 2025 | 2024 |  |  |  |
Interest expense, net | $ | (179) |  | $ | (205) |  |  | $ | 26 |  |  |  |  |
Gain/(loss) on investments, net | (40) |  | (227) |  |  | 187 |  |  |  |  |
Loss on extinguishment of debt | — |  | (4) |  |  | 4 |  |  |  |  |
Miscellaneous, net | (30) |  | (56) |  |  | 26 |  |  |  |  |
Total non-operating expense, net | $ | (249) |  | $ | (492) |  |  | $ | 243 |  |  |  |  |

Interest expense, net. Interest expense, net includes interest expense and interest income. This decreased compared to the prior year primarily due to reduced interest expense resulting from our debt reduction initiatives. During 2024, we made payments of $4.0 billion related to our debt and finance lease obligations. We have continued to pay down our debt during the three months ended March 31, 2025 with $531 million of payments on debt and finance lease obligations. We continue to seek opportunities to pre-pay our debt, in addition to periodic amortization and scheduled maturities, and refinance higher cost debt.
Gain/(loss) on investments, net. Changes in the valuation of investments accounted for at fair value are recorded in gain/(loss) on investments, net and are driven by changes in stock prices, foreign currency fluctuations and other valuation techniques for investments in certain companies, particularly those without publicly-traded shares. See Note 4 of the Notes to the Condensed Consolidated Financial Statements for additional information on our equity investments measured at fair value on a recurring basis.
Loss on extinguishment of debt. Loss on extinguishment of debt reflects the losses incurred in the early repayment of certain loans and notes.
Miscellaneous, net. Miscellaneous, net primarily includes employee benefit plans net periodic cost, charitable contributions, our share of our equity method investments' results, dividends received from our equity investees and foreign exchange gains/(losses).
Income Taxes
We project our annual effective tax rate for 2025 will be between 24% and 26%. In certain periods, we may have adjustments to our net deferred tax liabilities as a result of changes in prior year estimates, mark-to-market adjustments on our equity investments and tax laws enacted during the period, which will impact the effective tax rate for that period.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 19

Item 2. MD&A - Refinery Segment
Refinery Segment
The refinery operated by Monroe primarily produces gasoline, diesel and jet fuel. Monroe exchanges non-jet fuel products the refinery produces with third parties for jet fuel consumed in our airline operations. The jet fuel produced and procured through exchanging gasoline and diesel fuel produced by the refinery typically provides approximately 200,000 barrels per day, or approximately 75% of our consumption, for use in our airline operations. The refinery regularly optimizes its sales and exchange activities based on market conditions. The refinery generated a small operating loss in the three months ended March 31, 2025 compared to operating income in the three months ended March 31, 2024, primarily as a result of lower pricing of refined products.
For more information regarding the refinery's results, see Note 9 of the Notes to the Condensed Consolidated Financial Statements.

Refinery segment financial information
| Three Months Ended March 31, |  | Increase (Decrease) |  |  |
(in millions, except per gallon data) | 2025 | 2024 |  |  |  |
Exchanged products | $ | 341 |  | $ | 439 |  |  | $ | (98) |  |  |  |  |
Sales of refined products | 35 |  | 39 |  |  | (4) |  |  |  |  |
Sales to airline segment | 260 |  | 386 |  |  | (126) |  |  |  |  |
Third party refinery sales | 1,062 |  | 1,185 |  |  | (123) |  |  |  |  |
Operating revenue | $ | 1,698 |  | $ | 2,049 |  |  | $ | (351) |  |  |  |  |
Operating (loss)/income | $ | (1) |  | $ | 49 |  |  | $ | (50) |  |  |  |  |
Refinery segment impact on airline average price per fuel gallon | $ | — |  | $ | (0.05) |  |  | $ | 0.05 |  |  |  |  |

Operating Statistics

| Three Months Ended March 31, | % Increase (Decrease) |  |  |
Consolidated(1) | 2025 | 2024 |  |  |
Revenue passenger miles (in millions) ("RPM") | 55,678 |  | 54,207 |  |  | 3 |  | % |  |  |  |  |  |
Available seat miles (in millions) ("ASM") | 68,401 |  | 65,542 |  |  | 4 |  | % |  |  |  |  |  |
Passenger mile yield | 20.62 | ¢ | 20.53 | ¢ |  | — |  | % |  |  |  |  |  |
Passenger revenue per available seat mile ("PRASM") | 16.78 | ¢ | 16.98 | ¢ |  | (1) |  | % |  |  |  |  |  |
Total revenue per available seat mile ("TRASM") | 20.53 | ¢ | 20.98 | ¢ |  | (2) |  | % |  |  |  |  |  |
TRASM, adjusted(2) | 18.97 | ¢ | 19.17 | ¢ |  | (1.0) |  | % |  |  |  |  |  |
Cost per available seat mile ("CASM") | 19.69 | ¢ | 20.04 | ¢ |  | (2) |  | % |  |  |  |  |  |
CASM-Ex(2) | 14.44 | ¢ | 14.08 | ¢ |  | 2.6 |  | % |  |  |  |  |  |
Passenger load factor | 81.4 | % | 82.7 | % |  | (1.3) |  | pts |  |  |  |  |  |
Fuel gallons consumed (in millions) | 976 |  | 931 |  |  | 5 |  | % |  |  |  |  |  |
Average price per fuel gallon(3) | $ | 2.47 |  | $ | 2.79 |  |  | (11) |  | % |  |  |  |  |  |
Average price per fuel gallon, adjusted(2)(3) | $ | 2.45 |  | $ | 2.76 |  |  | (11) |  | % |  |  |  |  |  |

(1)Includes the operations of our regional carriers under capacity purchase agreements.
(2)Non-GAAP financial measures defined and reconciled to TRASM, CASM and average fuel price per gallon, respectively, in "Supplemental Information" below.
(3)Includes the impact of fuel hedge activity and refinery segment results.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 20

Item 2. MD&A - Fleet Information
Fleet Information
Our operating aircraft fleet, purchase commitments and options at March 31, 2025 are summarized in the following table.

Mainline aircraft information by fleet type
| Current Fleet(1) |  |  | Commitments
Fleet Type | Owned | Finance Lease | Operating Lease | Total | Average Age (Years) |  | Purchase | Options
A220-100 | 45 |  | — |  | — |  | 45 |  | 5.3 |  |  |
A220-300 | 31 |  | — |  | — |  | 31 |  | 2.3 |  | 69 |  |
A319-100 | 57 |  | — |  | — |  | 57 |  | 23.1 |  |  |
A320-200 | 54 |  | — |  | — |  | 54 |  | 29.0 |  |  |
A321-200 | 77 |  | 8 |  | 42 |  | 127 |  | 6.3 |  |  |
A321-200neo | 73 |  | — |  | — |  | 73 |  | 1.6 |  | 82 |  | 70 |
A330-200 | 11 |  | — |  | — |  | 11 |  | 20.0 |  |  |
A330-300 | 28 |  | — |  | 3 |  | 31 |  | 16.2 |  |  |
A330-900neo | 26 |  | 2 |  | 5 |  | 33 |  | 2.8 |  | 6 |  | 10 |
A350-900 | 25 |  | — |  | 11 |  | 36 |  | 5.0 |  | 8 |  | 10 |
A350-1000 | — |  | — |  | — |  | — |  | — |  | 20 |  |
B-717-200 | 48 |  | 32 |  | — |  | 80 |  | 23.5 |  |  |
B-737-800 | 73 |  | 4 |  | — |  | 77 |  | 23.5 |  |  |
B-737-900ER | 119 |  | — |  | 44 |  | 163 |  | 9.2 |  |  |
B-737-10 | — |  | — |  | — |  | — |  | — |  | 100 |  | 30 |
B-757-200 | 86 |  | — |  | — |  | 86 |  | 27.1 |  |  |
B-757-300 | 16 |  | — |  | — |  | 16 |  | 22.1 |  |  |
B-767-300ER | 39 |  | — |  | — |  | 39 |  | 28.6 |  |  |
B-767-400ER | 21 |  | — |  | — |  | 21 |  | 24.2 |  |  |
Total | 829 |  | 46 |  | 105 |  | 980 |  | 14.9 |  | 285 |  | 120 |

(1)Excludes certain aircraft we own or lease that are operated by regional carriers on our behalf shown in the table below.
The following table summarizes the aircraft operated by regional carriers on our behalf at March 31, 2025.

Regional aircraft information by fleet type and carrier
|  | Fleet Type(1)(2) |
Carrier |  | CRJ-700 | CRJ-900 | Embraer 170 | Embraer 175 | Total
Endeavor Air, Inc.(3) |  | 14 |  | 121 |  | — |  | — |  | 135 |
SkyWest Airlines, Inc. |  | 5 |  | 35 |  | — |  | 86 |  | 126 |
Republic Airways, Inc. |  | — |  | — |  | 11 |  | 46 |  | 57 |
Total |  | 19 |  | 156 |  | 11 |  | 132 |  | 318 |

(1)We own 197 and have operating leases for two of these regional aircraft. The remainder are owned or leased by SkyWest Airlines, Inc. or Republic Airways, Inc.
(2)Excluded from the total operating count above are six owned CRJ-700 aircraft and one operating leased CRJ-900 aircraft which are temporarily parked as of March 31, 2025.
(3)Endeavor Air, Inc. is a wholly owned subsidiary of Delta.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 21

Item 2. MD&A - Financial Condition and Liquidity
Financial Condition and Liquidity
As of March 31, 2025, we had $6.8 billion in cash, cash equivalents, short-term investments and aggregate undrawn principal amount available under our revolving credit facilities. We expect to meet our liquidity needs for the next twelve months with cash and cash equivalents and cash flows from operations. We expect to meet our long-term liquidity needs with cash flows from operations and financing arrangements.
Undrawn Lines of Credit. As of March 31, 2025, we had approximately $3.1 billion undrawn and available under our revolving credit facilities.
Sources and Uses of Liquidity
Operating Activities
We generated cash flows from operations of $2.4 billion in both the three months ended March 31, 2025 and 2024. We expect to continue generating positive cash flows from operations during the remainder of 2025.
Our operating cash flow is impacted by the following factors:
Seasonality of Advance Ticket Sales. We sell tickets for air travel in advance of the customer's travel date. When we receive a cash payment at the time of sale, we record the cash received on advance sales as deferred revenue in air traffic liability. The air traffic liability typically increases during the winter and spring months as advance ticket sales grow prior to the summer peak travel season and decreases during the summer and fall months.
Fuel. Fuel expense represented approximately 18% and 20% of our total operating expense for the three months ended March 31, 2025 and 2024, respectively. The market price for jet fuel is volatile, which can impact the comparability of our periodic cash flows from operations. Fuel consumption was higher during the three months ended March 31, 2025 compared to the prior year period due to the increase in capacity. We expect that fuel consumption for the remainder of 2025 will increase compared to 2024 aligned with capacity, partially offset by improvements in the fuel efficiency of our fleet.
Profit Sharing. We paid $1.4 billion in profit sharing payments in February 2025 related to our 2024 pre-tax profit in recognition of our employees' contributions toward achieving the year's financial results.
Our broad-based employee profit sharing program provides that for each year in which we have an annual pre-tax profit, as defined by the terms of the program, we will pay a specified portion of that profit to eligible employees. In determining the amount of profit sharing, the program defines profit as pre-tax profit adjusted for profit sharing and certain other items. During the three months ended March 31, 2025, we accrued $124 million in profit sharing expense based on the year-to-date performance and current expectations for 2025 profit.
Sale of Miles to Participating Companies. Customers earn miles based on their spending with participating companies such as credit card, retail, ridesharing, car rental and hotel companies with which we have marketing agreements to sell miles. Payments are typically due to us monthly based on the volume of miles sold during the period. Our most significant contract to sell miles relates to our co-brand credit card relationship with American Express. Total cash sales to American Express were $1.9 billion in the three months ended March 31, 2025, an increase of 13% compared to the prior year period. See Note 2 of the Notes to the Condensed Consolidated Financial Statements for further information regarding the cash sales from marketing agreements.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 22

Item 2. MD&A - Financial Condition and Liquidity
Investing Activities
Capital Expenditures. Our capital expenditures were $1.2 billion for both the three months ended March 31, 2025 and 2024. We have committed to future aircraft purchases and have obtained, but are under no obligation to use, long-term financing commitments for a substantial portion of the purchase price of the aircraft. Our expected 2025 capital spend of approximately $5.0 billion will be primarily for aircraft, including deliveries and advance deposit payments, as well as fleet modifications and technology enhancements.
Financing Activities
Debt and Finance Leases. In the three months ended March 31, 2025, we had cash outflows of $531 million related to repayments of our debt and finance lease obligations. We continue to seek opportunities to pre-pay our debt, in addition to periodic amortization and scheduled maturities, and refinance higher cost debt.
In February 2025, Moody's credit rating agency upgraded its rating for Delta to Baa2, an investment grade rating. See Note 5 of the Notes to the Condensed Consolidated Financial Statements for further information on our debt agreements.
Capital Return to Shareholders. In the March 2025 quarter, the Board of Directors approved a quarterly dividend of $0.15 per share which we paid on March 20, 2025 for total cash dividends of $99 million.
Covenants. We were in compliance with the covenants in our debt agreements at March 31, 2025.
Critical Accounting Estimates
There have been no material changes in our Critical Accounting Estimates from the information provided in the "Critical Accounting Estimates" section of "Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations" in our Form 10-K.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 23

Item 2. MD&A - Supplemental Information
Supplemental Information
We sometimes use information (non-GAAP financial measures) that is derived from the Condensed Consolidated Financial Statements, but that is not presented in accordance with GAAP. Under the U.S. Securities and Exchange Commission rules, non-GAAP financial measures may be considered in addition to results prepared in accordance with GAAP, but should not be considered a substitute for or superior to GAAP results.
Included below are reconciliations of non-GAAP measures used within this Form 10-Q to the most directly comparable GAAP financial measures. Reconciliations below may not calculate exactly due to rounding. These reconciliations include certain adjustments to GAAP measures to provide comparability between the reported periods, if applicable, and for the reasons indicated below:
•Third-party refinery sales. Refinery sales to third parties, and related expenses, are not related to our airline segment. Excluding these sales therefore provides a more meaningful comparison of our airline operations to the rest of the airline industry.
•MTM adjustments and settlements on hedges. Mark-to-market ("MTM") adjustments are defined as fair value changes recorded in periods other than the settlement period. Such fair value changes are not necessarily indicative of the actual settlement value of the underlying hedge in the contract settlement period, and therefore we remove this impact to allow investors to better understand and analyze our core performance. Settlements represent cash received or paid on hedge contracts settled during the applicable period.
•Aircraft fuel and related taxes. The volatility in fuel prices impacts the comparability of year-over-year financial performance. The adjustment for aircraft fuel and related taxes allows investors to better understand and analyze our non-fuel costs and year-over-year financial performance.
•Profit sharing. We adjust for profit sharing because this adjustment allows investors to better understand and analyze our recurring cost performance and provides a more meaningful comparison of our core operating costs to the airline industry.

Total revenue, adjusted reconciliation
|  | Three Months Ended March 31,
(in millions) | 2025 | 2024
Total revenue | $ | 14,040 |  | $ | 13,748 |
Adjusted for: |  |
Third-party refinery sales | (1,062) |  | (1,185) |
Total revenue, adjusted | $ | 12,978 |  | $ | 12,563 |

Operating expense, adjusted reconciliation
|  | Three Months Ended March 31,
(in millions) | 2025 |  | 2024 |
Operating expense | $ | 13,471 |  |  | $ | 13,134 |  |
Adjusted for: |  |  |  |
Third-party refinery sales | (1,062) |  |  | (1,185) |  |
MTM adjustments and settlements on hedges | (22) |  |  | (27) |  |
Operating expense, adjusted | $ | 12,388 |  |  | $ | 11,923 |  |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 24

Item 2. MD&A - Supplemental Information

Fuel expense, adjusted reconciliation
|  |  |  |  | Average Price Per Gallon
| Three Months Ended March 31, |  | Three Months Ended March 31,
(in millions, except per gallon data) | 2025 | 2024 |  |  | 2025 | 2024 |
Total fuel expense | $ | 2,410 |  | $ | 2,598 |  |  |  | $ | 2.47 |  | $ | 2.79 |  |
Adjusted for: |  |  |  |  |  |  |
MTM adjustments and settlements on hedges | (22) |  | (27) |  |  |  | (0.02) |  | (0.03) |  |
Total fuel expense, adjusted | $ | 2,388 |  | $ | 2,571 |  |  |  | $ | 2.45 |  | $ | 2.76 |  |

TRASM, adjusted reconciliation
| Three Months Ended March 31, |  |
| 2025 | 2024 |  |  |  |  |
TRASM (cents) | 20.53 | ¢ | 20.98 | ¢ |  |  |  |  |
Adjusted for: |  |  |  |  |  |  |
Third-party refinery sales | (1.55) |  | (1.81) |  |  |  |  |  |
TRASM, adjusted | 18.97 | ¢ | 19.17 | ¢ |  |  |  |  |

CASM-Ex reconciliation
| Three Months Ended March 31, |  |
| 2025 | 2024 |  |  |  |  |
CASM (cents) | 19.69 | ¢ | 20.04 | ¢ |  |  |  |  |
Adjusted for: |  |  |  |  |  |  |
Aircraft fuel and related taxes | (3.52) |  | (3.96) |  |  |  |  |  |
Third-party refinery sales | (1.55) |  | (1.81) |  |  |  |  |  |
Profit sharing | (0.18) |  | (0.19) |  |  |  |  |  |
CASM-Ex | 14.44 | ¢ | 14.08 | ¢ |  |  |  |  |

Free Cash Flow
The following table shows a reconciliation of net cash provided by operating and used in investing activities (GAAP measures) to free cash flow (a non-GAAP financial measure). We present free cash flow because management believes this metric is helpful to investors to evaluate the company's ability to generate cash that is available for use for debt service or general corporate initiatives. Adjustments include:
•Pension plan contributions. Cash flows related to pension funding are included in our GAAP operating activities. We adjust to exclude these contributions to allow investors to understand the cash flows related to our core operations.
•Net cash flows related to certain airport construction projects and other. Cash flows related to certain airport construction projects are included in our GAAP operating activities and capital expenditures. We have adjusted for these items because management believes investors should be informed that a portion of these capital expenditures from airport construction projects are either reimbursed by a third party or funded with restricted cash specific to these projects.

Free cash flow reconciliation
(in millions) | Three Months Ended March 31, 2025
Net cash provided by operating activities | $ | 2,378 |  |  |
Net cash used in investing activities | (1,224) |  |  |
Adjusted for: |  |  |
Pension plan contributions | 10 |  |  |
Net cash flows related to certain airport construction projects and other | 116 |  |  |
Free cash flow | $ | 1,280 |  |  |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 25

Item 3. Market Risk
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
There have been no material changes in market risk from the information provided in "Item 7A. Quantitative and Qualitative Disclosures About Market Risk" in our Form 10-K.
ITEM 4. CONTROLS AND PROCEDURES
Our management, including our Chief Executive Officer and Chief Financial Officer, performed an evaluation of our disclosure controls and procedures, which have been designed to permit us to identify and disclose important information timely and effectively. Our management, including our Chief Executive Officer and Chief Financial Officer, concluded that the controls and procedures were effective as of March 31, 2025 to ensure that material information was accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure.
During the three months ended March 31, 2025, we did not make any changes in our internal control over financial reporting that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.
PART II. OTHER INFORMATION
ITEM 1. LEGAL PROCEEDINGS
"Item 3. Legal Proceedings" of our Form 10-K includes a discussion of our legal proceedings. There have been no material changes from the legal proceedings described in our Form 10-K.
ITEM 1A. RISK FACTORS
“Item 1A. Risk Factors” of our Form 10-K includes a discussion of our known material risk factors, other than risks that could apply to any issuer or offering. There have been no material changes from the risk factors described in our Form 10-K.
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
The following table presents information with respect to purchases of common stock we made during the March 2025 quarter. The table reflects shares withheld from employees to satisfy certain tax obligations due in connection with grants of stock under the Delta Air Lines, Inc. Performance Compensation Plan (the "Plan"). The Plan provides for the withholding of shares to satisfy tax obligations. It does not specify a maximum number of shares that can be withheld for this purpose. The shares of common stock withheld to satisfy tax withholding obligations may be deemed to be "issuer purchases" of shares that are required to be disclosed pursuant to this Item.

Shares purchased / withheld from employee awards during the March 2025 quarter
Period | Total Number of Shares Purchased | Average Price Paid Per Share | Total Number of Shares Purchased as Part of Publicly Announced Plans | Approximate Dollar Value (in millions) of Shares That May Yet be Purchased Under the Plan
January 2025 | 666,367 |  | $ | 67.18 |  | 666,367 |  | $ | — |
February 2025 | 487,755 |  | $ | 69.04 |  | 487,755 |  | $ | — |
March 2025 | 1,634 |  | $ | 55.39 |  | 1,634 |  | $ | — |
Total | 1,155,756 |  |  | 1,155,756 |  |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 26

ITEM 6. EXHIBITS
(a) Exhibits

3.1 (a) |  | Delta's Amended and Restated Certificate of Incorporation (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on April 30, 2007).*
3.1 (b) |  | Amendment to Amended and Restated Certificate of Incorporation (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on June 27, 2014).*
3.2 |  | Delta's Bylaws (Filed as Exhibit 3.1 to Delta's Current Report on Form 8-K as filed on December 9, 2022).*
4.1 |  | Description of Registrant's Securities (Filed as Exhibit 4.1 to Delta's Annual Report on Form 10-K for the year ended December 31, 2020).*
10.1 |  | Model Award Agreement for the Delta Air Lines, Inc. 2025 Long-Term Incentive Program.
15 |  | Letter from Ernst & Young LLP regarding unaudited interim financial information.
31.1 |  | Certification by Delta's Chief Executive Officer with respect to Delta's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2025.
31.2 |  | Certification by Delta's Chief Financial Officer with respect to Delta's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 202 5.
32 |  | Certification pursuant to Section 1350 of Chapter 63 of Title 18 of the United States Code by Delta's Chief Executive Officer and Chief Financial Officer with respect to Delta's Quarterly Report on Form 10-Q for the quarterly period ended March 31, 2025.
101.INS |  | Inline XBRL Instance Document - The instance document does not appear in the interactive data file because its XBRL tags are embedded within the Inline XBRL document.
101.SCH |  | Inline XBRL Taxonomy Extension Schema Document
101.CAL |  | Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF |  | Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB |  | Inline XBRL Taxonomy Extension Labels Linkbase Document
101.PRE |  | Inline XBRL Taxonomy Extension Presentation Linkbase Document
104 |  | The cover page from this Quarterly Report on Form 10-Q for the quarter ended March 31, 2025, formatted in Inline XBRL (included in Exhibit 101)
| * | Incorporated by reference.

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 27

SIGNATURE
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| Delta Air Lines, Inc.
| (Registrant)
| /s/ William C. Carroll
| William C. Carroll
| Senior Vice President - Controller
| (Principal Accounting Officer)
April 9, 2025 |

Delta Air Lines, Inc. | March 2025 Form 10-Q |  | 28